I think we need to stop calling it a big three. I actually like Beal's play style and his character, but he is no where near being a star caliber player at this stage of his career.
And, we can't blow it up and rebuild, no point. Our draft situation is far too leveraged.
Would we rather tough this out, win 40-50 games a year and pray for a miracle, or be the worst team in the NBA for the next 6+ seasons and watch other teams use our picks to draft top 4 players year after year? Yeah, those 15-20 win teams will also be getting whatever picks Booker gets us, but barring a moment of savant level genious, we are not going to get a star caliber player back with whatever piddly, late round picks we get in exchange.
We should keep our ears open for Durant deals. If some team is stupid enough to gut their team for him, let them. But trading Durant AND Booker would put this team in a 7 or 8 year abyss of hopelessness that would obliterate the fan base.